140448870 has 64 divisors (see below), whose sum is σ = 375598080. Its totient is φ = 37346400.

The previous prime is 140448859. The next prime is 140448871. The reversal of 140448870 is 78844041.

It is a happy number.

140448870 is a `hidden beast` number, since 140 + 448 + 8 + 70 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140448871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153715 + ... + 154625.

It is an arithmetic number, because the mean of its divisors is an integer number (5868720).

Almost surely, 2^140448870 is an apocalyptic number.

140448870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140448870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187799040).

140448870 is an abundant number, since it is smaller than the sum of its proper divisors (235149210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140448870 is a wasteful number, since it uses less digits than its factorization.

140448870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 140448870 is about 11851.1126059961. The cubic root of 140448870 is about 519.8037597776.

The spelling of 140448870 in words is "one hundred forty million, four hundred forty-eight thousand, eight hundred seventy".